I'm looking to buy a PC Engine flash cartridge, but I have a question. Which of the currently available flash cartridges(Tototek, NEO) support System Cards, more specifically, the Super System Card? I found this picture on Tototek's website showing a PC Engine Duo-R running the System 1.0 card on the Tototek flash cartridge, but I'm wondering if that flash cartridge or the NEO flash cartridge can be used as a Super System Card? Or am I SOL and have to import a Japanese Super System Card(I have a region-modded TurboGrafx with the TurboGrafx CD, so playing Japanese HuCards is not a problem, not to mention the US Super System Card is crazy expensive)?